2-D and 3-D shapes
Face
The flat surface of a 3D shape.
Vertex
The point where two sides meet.
Edge
Where two surfaces meet.
rectangular pyramid
a solid figure with a rectangle for its base and triangles for all other faces
Polygon
A 2-dimensional shape that has straight lines and is enclosed. Examples: triangle, square, rectangle, octagon, etc.
Circle
A 2D figure that is made with a continuous line which is always the same distance from the center.
Rectangular Prism
A 3-dimensional shape that has 6 faces, 8 vertices, and 12 edges.
Sphere
A 3-dimensional shape that has no faces, edges, or vertices.
Cube
A 3-dimensional shape that has: 6 square faces all equal in size, 8 vertices, and 12 edges.
Cone
A 3-dimensional shape with a circular base and a curved surface that come to a point (vertex).
Cylinder
A 3-dimensional shape with one curved surface and two congruent circular bases. It has no edges or vertices.
Octagon
A polygon that has eight sides and eight angles.
Pentagon
A polygon that has five sides and five angles.
Hexagon
A polygon that has six sides and six angles.
Triangle
A polygon that has three sides and three angles.
triangular prism
A prism that has triangular bases
Parallelogram
A quadrilateral (4 sides & 4 angles) where opposites sides are parallel. (Rectangle, square, and rhombus are parallelograms)
Trapezoid
A quadrilateral (4 sides & 4 angles) with one pair of parallel sides.
Rhombus
A quadrilateral with four equal sides and equal opposite angles.
Square
A quadrilateral with four equal sides and four equal angles. Opposite sides are parallel.
Rectangle
A quadrilateral with four sides and four right angles. Opposite sides are parallel and equal in length.
Rectangular Pyramid
A solid shape with a polygon as a base and triangular faces that come to a point (vertex or apex)
Side
Line segments of a polygon.
triangular pyrimid
Pyramid with a triangular base